Machine for corrugating plastic blocks



M. T. STRAIGHT.

MACHINE FOR- CORRUGATING PLASTIC BLOCKS. APPLICATION FI LED JUNE 20.1919.

1,41 1,535. Patented pr- 4, 1922.

which: it

Fig. 1 1s acentral longltudinal sectional VIGW; of my improvedcorrugating machlnev UNITED STATES PATENT OFFICE.

MERTONT. srrtnrenryor' ennn', IOWA, ASSIGNOR 'ro HALVER R STRAIGHT, orABEL,

IOWA.

MACHINE FOR CORRUGATIING PLASTIC 'BLJOGKS.

Specification of Letters'Patent.

Patented Apr. 4,1922.

' .tlpplication filed June 20, 1919. Serial No. 305,510;

Z T0 (1Z6 whom it may concern tie it known that. I, MEnToN T. STRAIGHT,

a citizen of the United States, residing at Adel, in the countyotDallas, State oflowa, have invented a Machine for Corrugatingiflasticlilocks, oi. which the-following is the specification. r

This invention relates to improvementsin clay Workingmachine'sandparticularly to those designed to corrugate the ends of tileand hollow building blocks. .Heretobefore the tile,and,buildingblockshave been cut withcomparatively smooth ends. I i-drain tile is desirableto corrugate orgroovethe ends to per nit water to'fiowimore freelybetween the adjacent, endswhen laidgin. the ditch. In building blocl zs'itis desirableto corrugate or groove the jendsxto ,pern1it the mortarandcement to adhere more firmly, when the blocks are laid-in a wall;

The object otiriy invention is to provide a machine of simple, durable.and inexpensive construction adapted to automatically fOI'ID QlOOVGS orcorrugationsin the ends of blocks, formed of plastic.Inaterial.

A further objectis to L provide in. connection with abeltffor conveyingplastic blocks, means for automatically corrugating the up per. andlower ends of the bloclc carried thereby. I r r Y r A further object isto provide in a device for corrugating plastic blocks carried by aconveyor belt, new and improved means vfor timing" and driving thedevices from said belt.

A Still "further object is to provide in a device for, corrugatingplastic blocks by means of spaced corrugated rollers, improved means forpreventing the plastic material from sticking to the grooves in saidrollers as they are being operated.

My invention consists in the construction.,- arrangement and combinationof the various parts of the device whereby the objects con-.

templated are obtained as hereinafter inore fully set forth, pointed outin my claims and illustrated in the accompanying drawings in showing themanner in which the blocks are conveyed between the rollers.

Fig. 2 is a transverse sectional on the line 2-2.,of Fig. 1. Q, V

Fig. is a detailed elevation showingthe view taken dipper edge. a

wheel 15;" p,

f' t'otatably inountedin the upper edges of dilijnlllbl'S 8 adjacent tothe notch 11, are transverse rollers 16. Similar rollers 17 are leithandside of Fig. 2 and the portion of the supporting frame.

Fig; & is a perspective view ot-a tile that has been corrugatedjby mydevice showing the mannerin whichlthe grooves or corrugations areplacedthereon. J o

in the illustration ofiny lnventlon dlsclosed, 1n theaccoinpanylngdrawings, I have used the reference numeral 8. to indicate parallelsupporting vmembers provided with legs 9and connected togetherby meansof transverse members 10. Each ofthe side meinbers 8 is provided withanotch 11 inlits R'otatably moiinted Lin each end :of the "members Sis ashaft 13, each of which is de signeil'to carry. a pulley wheel l4,one ofthe shafts 13 being extended laterally from the sideof the frame andprovided withabelt provided at substantially equidistances betweenthe'rollers 16 and the pulleys 14. Rotatably n ountedflat point belowand between the pulleys 16 is a shaft 18, one end of which is providedwith a belt pulleyli).

A gear wheel 20 is secured tothe shaft 18 adjacent to the inner: side of[one of the members 8. .Secured to one end of the cen tralportion of theshaft 18, I have provided a disc 21 provided with a series of laterallyegitendingbars 22 which are spaced apart and arranged parallel to eachother andparallel with the shaft 18. Theopposite ends of the bars 22 areheld inposition relative to each other by means of the ring 22. Securedto the shaft 18 inside ofthe bars 22, I have provided anauger 23, ofsucha diameter as to engage the bars 22. These bar-s22 and disc 21 fornia drum, the purpose of which "will be more fully set forth.

Mounted upon the pulleys 14,1 have provided a belt 23, the upper run ofwhich is, designed to rest on the upper sides of the rollers 17 andextend downwardly between the rollers 16 and beneath the drul'n formedhy'tlre bars 22. For sake of convenience, I shall call this drum adriving pulley.

Secured to the outsides of one of the mem- Y bersS and extending acrossthe opening 11, I

have provided a barQd held in position by means of bolts 2&1, (Fig. Thebar 24 is provided with an upwardly"extending area "eat member 26 havinga bearing 27 at its upper end, amlat the intersecting portions of thebiirs 24 and 26 a bearing 28. Secured to the opposite member 8, I haveprovided an up- 5 right member 29 somewhat similar. to the member 26 andprovided at its upper end with ithe beari 31 and at its intersectingportion provide the lower side of which is provided wit the shelf flo: V

Botatably mounted in the bearings 27 and 31,I have provided a shaft 33having on dhefefid a pulley wheel 34. This pulley 34 ls inline with thepulle wheel 19 before mentioned. Secured to t e central portion oftheshaft 35, I have provided a cylin- =di'um 35,the periphery of which ispi'pvided with teeth or grooves 36. These teeth iii'efcomparativel closetogether and tticteiidjcircumferentiall ffThe j drumis Iformed hollowand provided with s oke's 36,"- the ends" being otherwise ogpen. has itwill be seen I have provided z gf hdllow space through which heated airY he'conducted hy means of any connie nj burner such as a blow torch andinafiteby'the numeral 37.

otatablymounted in the bearings 28 g ave provided a some hat sim 'h d r,rum than the one indicatedby the nitrates, ass d of which is provided tha ar 39]. This gear39 is designed to p, the, gear 20 before described; A35, similar 'to 37, is employed for lta tipg thisdrum 3,180. A belt 40is operatlveljflmounted upon the pulleys 19 and 34.

hijbperation, assuming that the belt wheel 2 is connected with" suitablepower and is 40 rotated, and that the tile or blocks are fbeitigflplaced upon the belt 23", by hand or otherwise and ma verticalposition, it will be seen that thesaid belt will be rotated and meadowsdirection as indicated by' the ar- 5 row. The rotation of the belt 23willcause thedriving drum 21 to be rotated and the gears 20 and 39rotated. The tile or block thereon will also be advanced toward thedrums 35 and 38, This will cause the upper to; face of the drum 38toberotated in the same direction "as the horizontal portion of the belt23. "The drum 35 will also be rotated in the opposite direction from thedrum 38 means of the belt 40, the peripheral speed 55, of the drum 35'and 38 being substantially equal to that of the belt 23. Thus it will beseen that as the said belt and drums are 1'0- 1 tated, the tile orblocks 44 will be advanced and caused to J travel between the drums 35and 38. The distance between the said i drums is substantially equal tothe length of the blocks, parallel grooves 0r corrugaytionswilltherefore be formed on the ends of the plastic tile or blocks.

become heated and heat the teeth, causing a with a bearing 32 Thismember 29 is provided with an openm 32,

longitudinally towards the open end by y aroundthe "support, a conveyorbelt be t running beneathand over To prevent the plastic clay ormaterial from sticking between the teeth of the drums 35 and 38,Ihaveprovided the torches 3'7 and 43 before mentloned. They aresoarranged that the air within the drums will film of steam to begenerated when engaged by the moist material. This steam prevents thematerial from sticking to the teeth.

To prevent the driving drum or roller 21 from lapping or windin with thefragments of the soft material, have provided the slats 22. These willpermit the material to be forced between them which will be moved meansofthe auger 23as'it is rotated. 30 Thus it will be seen that I haveprovided a machine of comparatively simple and inexpensive constructionadapted to corrugate the ends of Iclaim:

'1.In a device of the class describedya (tipfratively "mount- 7 ed'thereon, means for 'ving said belt, means "for formi a loop in one.oimthe runners of said bet, a co ted rollerin said loo a second roller,and

plastic tile or blocks.

means or drivingsaidworrugated rollers n opposite" directions as theconveyor belt is operated.

2;In a device ofthe described, zontal and parallel supports, atransverse roller at eachend of saidsupport, central spaced transverserollers, a driver roller teneath andlbetween said central rollers a beltwheel on one'end of said driverf'ro er shaft, a gear on sai'd driverrollershaft, a

conveyorwbelt running beneath and over the end rollers and over usebetween the ."cen

tral rollers and beneaththedriver roller, a corrugated roller betweenthe central rollers havin its upper face substantially level with t eupper run of the conveyor belt, a pinion on'said corrugated roller inmesh with the said gear, a second corrugated roller above and parallelwith the said first corrugated roller, a belt wheel on the end of salduppler corrugated roller, a belt for said belt w eels, and means fordriving said end rollers.

3. In a device of the class described,horizontal-and arallel supports, atransverse roller at eac' end oi? said support, central spacedtransverse rollers, a driver roller beneath and between said centralrollers, a belt wheel on one end of said driver roller :sliaft, a car onsaid driver roller shaft :1 conll yor the end-rollers and over andbetween the central; rollers and beneath the driver roller, a corrugatedroller between the central; rollers having its upper facesubstantiallylevel with the upper side of the conveyor belt, apinionousaid corrugated roller 1n mesh with the said gear, a second corrugatedroller above and par allel with the said first corrugated roller, a

belt wheel on the end of said upper corrugated roller, a belt for saidbelt wheels, means for driving said end rollers and means for heatingthe said corrugated rollers.

a. In a device of the class described, hori-. zontal and parallelsupports, a transverse roller at each end of said support, centralspaced transverse rollers, a driver roller beneath and between saidcentral rollers, said driving roller being formed of spaced bars andprovided with a central means for ad vancing material, that has passedbetween the bars, longitudinally and discharging it at one end, a beltwheel on one end of said driver roller shaft, a gear on said driverroller shaft, aconveyor belt running beneath and over the end rollersand over and be tween the central rollers and beneath the driver roller,a corrugated roller between the central rollers having its upper facesubstantially level with the upper side of the conveyor belt, a pinionon said corrugated roller in mesh with the said gear, a secondcorrugated roller above and parallel with the said first corrugatedroller, a belt wheel on the end ofsaid upper corrugated roller, a beltfor said belt wheels, means for driving said end rollers and means forheating the said corrugated rollers.

5. In a device of the class described, a support, a conveyor belt ope'atively mounted thereon, means for driving said belt, means for forminga loop in one of the runners of said belt, a corrugatedroller in saidloop, a second corrugated roller, means for driving said corrugatedrollers in opposite directions as the conveyor belt is operated, andmeans for heating each of said rollers, for the purpose stated.

6. In a device of the class described, a support, a conveyor belt, endrollers for said belt, intermediate rollers for one runner of said belt,a roller below and between two of said intermediate rollers, for forminga .said conveyor belt.

7. In a device of the class described, a conveyor belt having adownwardly projecting loop in its upper runner, means for supporting anddriving said conveyor, a corrugated roller in said loop, having itsupper face even with the face of said looped member, a second spacedcorrugated roller parallel therewith, means for driving the saidcorrugated rollers in opposite directions as the said conveyor belt isdriven.

8. In combination, a belt conveyor, a series of parallel supportingrollers, a roller below and between two of said parallel rollers, forforming a loop in said belt, said roller comprising a circular end plateand an annular member, a series of spaced bars arranged cylindricallyfor connecting said end members, and a central shaft for said roller.

9. In combination, a belt conveyor, a series of parallel supportingrollers, a roller below and between two of said parallel rollers, forforming a loop in said belt, said roller comprising a circular end plateand an annular member, a series of spaced rods arranged cylindricallyfor connecting said end members and to permit material from the belt topass to the interior of said roller, a central shaft for said roller, ascrew member between said bars and the shaft to move the collectedmaterial toward the end having the annular member, as the roller isrotated in one direction.

MERTQN T. STRAIGHT.

